Ornis Fennica 2021:1

Ornis Fennica 1/2021 contains the following articles: Aleksi Lehikoinen, Alison Johnston & Dario Massimino, Climate and land use changes: similarity in range and abundance changes of birds in Finland and Great Britain; Emily A Strong, Steve M. Redpath, Teresa Montràs-Janer, Johan Elmberg & Johan MånssonSeeking greener pastures: crop selection by Greylag Geese (Anser anser) during the moulting season; Alejandro Corregidor-Castro, Thomas E. Holm & Thomas Bregnballe, Coumting breeding gulls with unmanned aerial vehicles: camera quality and flying height affects precision of a semi-automatic counting method; Martin Pearson & Magne Husby, Supplementary feeding improves breeding performance in Eurasian Eagle Owl (bubo bubo).